CN101680187A - Paper and method for making paper - Google Patents

Paper and method for making paper Download PDF

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Publication number
CN101680187A
CN101680187A CN200880013413A CN200880013413A CN101680187A CN 101680187 A CN101680187 A CN 101680187A CN 200880013413 A CN200880013413 A CN 200880013413A CN 200880013413 A CN200880013413 A CN 200880013413A CN 101680187 A CN101680187 A CN 101680187A
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CN
China
Prior art keywords
paper
weight
pigment
printing
porosity
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Pending
Application number
CN200880013413A
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Chinese (zh)
Inventor
M·奥克萨宁
T·辛科
J·瓦尔韦玛
K·哈宝佳
T·莱佩宁
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UPM Kymmene Oy
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UPM Kymmene Oy
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Publication of CN101680187A publication Critical patent/CN101680187A/en
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    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H19/00—Coated paper; Coating material
    • D21H19/36—Coatings with pigments
    • D21H19/38—Coatings with pigments characterised by the pigments
    • D21H19/385—Oxides, hydroxides or carbonates
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
    • B41M5/00—Duplicating or marking methods; Sheet materials for use therein
    • B41M5/0023—Digital printing methods characterised by the inks used
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
    • B41M5/00—Duplicating or marking methods; Sheet materials for use therein
    • B41M5/50—Recording sheets characterised by the coating used to improve ink, dye or pigment receptivity, e.g. for ink-jet or thermal dye transfer recording
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
    • B41M5/00—Duplicating or marking methods; Sheet materials for use therein
    • B41M5/50—Recording sheets characterised by the coating used to improve ink, dye or pigment receptivity, e.g. for ink-jet or thermal dye transfer recording
    • B41M5/502—Recording sheets characterised by the coating used to improve ink, dye or pigment receptivity, e.g. for ink-jet or thermal dye transfer recording characterised by structural details, e.g. multilayer materials
    • B41M5/508—Supports
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
    • B41M5/00—Duplicating or marking methods; Sheet materials for use therein
    • B41M5/50—Recording sheets characterised by the coating used to improve ink, dye or pigment receptivity, e.g. for ink-jet or thermal dye transfer recording
    • B41M5/52—Macromolecular coatings
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B42—BOOKBINDING; ALBUMS; FILES; SPECIAL PRINTED MATTER
    • B42D—BOOKS; BOOK COVERS; LOOSE LEAVES; PRINTED MATTER CHARACTERISED BY IDENTIFICATION OR SECURITY FEATURES; PRINTED MATTER OF SPECIAL FORMAT OR STYLE NOT OTHERWISE PROVIDED FOR; DEVICES FOR USE THEREWITH AND NOT OTHERWISE PROVIDED FOR; MOVABLE-STRIP WRITING OR READING APPARATUS
    • B42D15/00—Printed matter of special format or style not otherwise provided for
    • B42D15/0073—Printed matter of special format or style not otherwise provided for characterised by shape or material of the sheets
    • B42D15/0093—Sheet materials
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D11/00—Inks
    • C09D11/02—Printing inks
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D11/00—Inks
    • C09D11/02—Printing inks
    • C09D11/03—Printing inks characterised by features other than the chemical nature of the binder
    • C09D11/033—Printing inks characterised by features other than the chemical nature of the binder characterised by the solvent
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H19/00—Coated paper; Coating material
    • D21H19/36—Coatings with pigments
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H19/00—Coated paper; Coating material
    • D21H19/36—Coatings with pigments
    • D21H19/38—Coatings with pigments characterised by the pigments
    • D21H19/40—Coatings with pigments characterised by the pigments siliceous, e.g. clays
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H21/00—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties
    • D21H21/14—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties characterised by function or properties in or on the paper
    • D21H21/16—Sizing or water-repelling agents
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
    • B41M5/00—Duplicating or marking methods; Sheet materials for use therein
    • B41M5/50—Recording sheets characterised by the coating used to improve ink, dye or pigment receptivity, e.g. for ink-jet or thermal dye transfer recording
    • B41M5/52—Macromolecular coatings
    • B41M5/5218—Macromolecular coatings characterised by inorganic additives, e.g. pigments, clays
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
    • B41M5/00—Duplicating or marking methods; Sheet materials for use therein
    • B41M5/50—Recording sheets characterised by the coating used to improve ink, dye or pigment receptivity, e.g. for ink-jet or thermal dye transfer recording
    • B41M5/52—Macromolecular coatings
    • B41M5/5236—Macromolecular coatings characterised by the use of natural gums, of proteins, e.g. gelatins, or of macromolecular carbohydrates, e.g. cellulose
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
    • B41M5/00—Duplicating or marking methods; Sheet materials for use therein
    • B41M5/50—Recording sheets characterised by the coating used to improve ink, dye or pigment receptivity, e.g. for ink-jet or thermal dye transfer recording
    • B41M5/52—Macromolecular coatings
    • B41M5/5254—Macromolecular coatings characterised by the use of polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds, e.g. vinyl polymers
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
    • Y10T428/24802—Discontinuous or differential coating, impregnation or bond [e.g., artwork, printing, retouched photograph, etc.]
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
    • Y10T428/24802—Discontinuous or differential coating, impregnation or bond [e.g., artwork, printing, retouched photograph, etc.]
    • Y10T428/24893—Discontinuous or differential coating, impregnation or bond [e.g., artwork, printing, retouched photograph, etc.] including particulate material
    • Y10T428/24901—Discontinuous or differential coating, impregnation or bond [e.g., artwork, printing, retouched photograph, etc.] including particulate material including coloring matter

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  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Wood Science & Technology (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Dispersion Chemistry (AREA)
  • Paper (AREA)
  • Inks, Pencil-Leads, Or Crayons (AREA)
  • Laminated Bodies (AREA)
  • Printing Methods (AREA)

Abstract

The invention relates to a paper that is formed of a fibre-based source material and is applicable as printing paper. According to the invention, the surface of the paper is surface-treated by arranging sufficient density on the surface, such that a mixture is arranged at least on one side of the surface of the paper for forming a surface layer, which mixture comprises pigments in an amount of 75-95% by weight of the dry weight and bonding agent in an amount of 5-25% by weight of the dry weight, and the porosity of the surface layer of the paper is less than 0.07ml/g as defined by mercury porosimeter process. Furthermore, the invention relates to a method for making paper.

Description

The method of paper and manufacturing paper
Technical field
[01] the present invention relates to the method for paper that defines and the manufacturing paper that defines in the preorder of claim 1 in the preorder of claim 10, the paper that wherein can be used as printing paper is formed by the fiber base source material.
Background technology
[02] known from prior art, different printing paper is used for printing and diverse ways is used to make paper.
[03] in print field, the different printing method of paper is known, for example offset printing or gravure techniques.In known method, particularly in HSWO printing, at high temperature, and usually under 120-150 ℃, drying printing ink, this is in the high humidity gradient that is provided between the dry period of printing-ink between printing and the non-Printing Zone.It is the key factor of ripple (waving) that the high humidity gradient that provides thus constitutes weakening HSWO printing quality.Exist many known being intended to reduce the method for ripple.
[04] with reference to publication WO 2004/003293, it discloses the dense paper with oil-wetted surface.Ge Li from the teeth outwards-Xi Er osmotic value (Gurley-Hill permeance value) is higher than 5000s/100ml.Forming dense paper with oil-wetted surface is expensive and industrially still to be unrealized.
Goal of the invention
[05] the objective of the invention is to disclose a kind of novel paper that can be used as the printing paper in the printing.Specific purposes of the present invention are to disclose such paper, and described paper makes the moisture gradient between printing and the non-print surface and avoids ripple, for example in the HSWO printing.A new method that further purpose is open manufacturing paper of the present invention.
Summary of the invention
[06] is characterised in that in claims to be provided according to paper of the present invention and method.
[07] the present invention is based on such paper, described paper is formed by the fiber base source material and can be used as printing paper.According to the present invention, carry out surface treatment by following surface: enough density is arranged from the teeth outwards to paper, mixture is arranged, preferred coating, at least on the one side on the surface of paper, forming superficial layer, pigment that described mixture packet content be the 75-95% of dry weight by weight and amount are the binding agent of the 5-25% of dry weight by weight, and the porosity of superficial layer is lower than 0.07ml/g, defines as the mercury porosity meter method.
[08] in the present context, the superficial layer of paper refers to the lip-deep superficial layer at paper, coating layer for example, and it can be by known any surface treatment method formation itself.
[09] particularly, the present invention is based on such paper: wherein the surface is arranged to fine and close and it comprises controllable superficial density.And the surface energy properties of paper is preferably controllable.Preferably, the surface of paper does not have any oleophilic properties.
[10] in paper according to the present invention, the gradient of moisture between printing and non-print surface, promptly drying gradient can be minimized, and ripple can be reduced, for example in the HSWO printing.By providing density, make moisture gradient become possibility with the ad hoc fashion paper feeding.Utilize the surface of fine and close paper, the non-print surface that may slow down is with respect to the drying of print surface, so as for example in the HSWO drying gradient of moisture can be lowered.By reducing gradient of moisture, may reduce the ripple in the paper.
[11] in the present context, paper refers to any fiber base paper.Paper can be made by chemical pulp, mechanical pulp, chemimechanical pulp, regenerated paper pulp and composition thereof and/or analog.Paper can be wet volume (wet web), do the form of volume (dried web) or sheet, or is suitable for other form of this purpose.Paper can comprise suitable filler and additive.
[12] by coating paper is carried out surface treatment, be formed on the surface of paper so that superficial layer is a coating layer.One preferred embodiment in, paper is applied, and more preferably slightly is coated with.Paper is individual layer preferably.
[13] in one embodiment, coating weight is 1-14g/m 2/ face.
[14] preferably, the ratio of pigment and binding agent is determined in advance and sets.
[15] in an embodiment of the invention, pigment is selected from: kaolin, talcum, calcium carbonate, gypsum and composition thereof and analog.One preferred embodiment in, pigment mainly comprises kaolin.In one embodiment, at least partly or entirely use flake pigment as pigment.In one embodiment, use the roughly pigment of sheet, in preferred embodiment, flake pigment exists with the amount more than 70% of amount of pigment by weight, in preferred embodiment, exists with the amount more than 90% of amount of pigment by weight.In one embodiment, pigment can comprise spherical pigment.
[16] in an embodiment of the invention, binding agent is selected from: starch, protein, latex, carboxymethyl cellulose, polyvinyl alcohol and composition thereof and analog.One preferred embodiment in, binding agent mainly comprises the latex or derivatives thereof, for example SB latex.
[17] in one embodiment, binding agent comprises glass transition temperature in-30-35 ℃ scope, more preferably the latex in 0-25 ℃ of scope.Glass transition temperature can for example pass through differential scanning calorimetry (DSC) and measure.
[18] preferably, the density of forming the surface of controlling paper by source material in binding agent-pigment combinations optimization coating mixture.In an embodiment of the invention, be arranged in the lip-deep mixture packet content of paper and be the pigment of the 82-92% of the total dry weight of mixture by weight, more preferably about 83-85% by weight.Pigment can be solid or discrete form, with and can be used as the composition that pigment wherein accounts for 30-100% by weight and exist.In an embodiment of the invention, the mixture packet content is the binding agent of the 8-17% of the total dry weight of mixture by weight, more preferably about 13-15% by weight.Binding agent can be solid or solution form, with and can be used as and comprise by weight that the composition of the binding agent of the amount of 3-100% exists.
[19] any suitable binding agent and the pigment surface treatment that can be used for paper.Further, known additive that is fit to itself for example can join during surface treatment in the coating mixture in this area.Mixture can comprise the additive of the amount of 0-10% by weight.
[20] in an embodiment of the invention, the porosity of paper superficial layer is lower than 0.06ml/g, measures as the mercury porosity meter method.Mercury porosity meter can be measured porosity and pore-size distribution.
[21] in an embodiment of the invention, paper is preferably carried out after surface treatment by press polish.
[22] in an embodiment of the invention, paper can be used as printing paper, is used for offset printing, particularly in the HSWO printing.
[23] in manufacturing according to paper of the present invention, the so-called body paper that uses can be the fiber base body paper that is fit to, it can manufactured according to the present inventionly can be used as the paper of printing paper, such as LWC (lights coating) paper, MWC (middle pound coating) paper, MFC (mechanism processing coating) paper, WFC paper (not containing the wood pulp coated paper) or similar paper.
[24] in one embodiment, filler, pigment, binding agent and/or other chemicals are joined in the fiber base source material in the manufacturing of paper.Any reagent known in the art and chemicals can be used as described filler, pigment, binding agent and chemicals.
[25] further, the present invention is based on the method for making paper, the paper that wherein can be used as printing paper is formed by the fiber base source material.According to the present invention, by following paper is carried out surface treatment: mixture is arranged, preferred coating, at least on the one side on paper surface, forming superficial layer, pigment that wherein said mixture packet content be the 75-95% of dry weight by weight and amount are the binding agent of the 5-25% of dry weight by weight, so that enough density to be provided on the surface of paper, make the porosity of superficial layer be lower than 0.07ml/g, measure as the mercury porosity meter method.
[26] manufacturing of paper, surface treatment, coating, press polish and/or printing etc. can be undertaken by the known mode in this area itself.
[27] in coated paper, can use any coating process, for example film transfer coated, scraper coating, scraper coating, the scraper coating of using SDTA (short residence time coating (short dwell time application)), spraying or curtain type coating or similar approach with the roller spreader with the nozzle spreader.
[28] compared with prior art, provide sizable advantage according to paper of the present invention and method.
[29] be fine and close basically according to paper of the present invention.Because according to paper of the present invention, the minimizing of ripple is provided in the paper of high-quality printed matter and printing.Minimize gradient of moisture and reduced the amount of the energy that needs in the drying, this is because the surface of the paper of dry more deflection printing.Further, evaporate the deterioration in print quality that water in the paper will make paper too much.
[30] the invention provides the easy and cost effective method of making the high quality paper that can be used as printing paper.Further, the invention provides industrial available, easy, making method made of paper easy and that afford to use.
The specific embodiment
[31] in following part, will be by detailed illustrative embodiments, present invention is described with reference to the accompanying drawings, wherein
[32] Fig. 1 shows the unsmooth measurement data of the pore size distribution curve of the paper coating layer of measuring by mercury porosity meter, and
[33] Fig. 2 shows the level and smooth pore size distribution curve according to Fig. 1.
Embodiment 1
[34] in this embodiment, the LWC-type paper that has the grammes per square metre of about 65gsm and can be used as printing paper is formed by known mechanical pulp itself. This body paper that contains timber is used the slight single coating of pigment/binder mixture, and coating weight is 11g/m2/ face. The pigment that uses is kaolin and/or talcum. Alternatively, any pigment itself that can is known is as pigment. The binding agent that uses is SB latex.
[35] form two kinds of different coating mixtures, it comprises a) 40 parts of kaolin, 60 parts of talcums and 14 parts of binding agents; And b) 100 parts of kaolin and 14 parts of binding agents.The kaolin that uses has such particle diameter and distributes, and wherein the particulate fraction less than 2 μ m is 85-95%, and is measured as Sedigraph 5100 devices.Further, coating mixture comprises the known additives of 2.1-2.6 part own.Solids content in the coating mixture is in the scope of 58-60% by weight.
[36] after coating, paper is carried out supercalendering.
[37] in this test, two kinds of mercury porosity meter instruments that use Mercury to provide: Micromeritics Autopore III and Pascal series 140/440, the porosity of the coating layer of mensuration paper.The result conforms to each other well.Observe, the result of acquisition can reappear well, and and device independent.
[38] porosity of the coating layer in pattern product according to the present invention of Huo Deing is: a) 0.044ml/g and b) 0.052ml/g.
[39] the reference paper of Shi Yonging is the LWC paper that contains timber accordingly, and wherein coating mixture comprises 60 parts of Century kaolin, 40 parts of Covercarb 75 calcium carbonate and 12 parts of DL966 latex.Further, coating mixture comprises 1.5 parts of known additives own.This body paper that contains timber is carried out the scraper coating, and coating weight is 11g/m 2/ face.The paper supercalendering of coating is become 65% gloss level.The mercury porosity meter that the porosity of coating layer provides by Mercury in the reference paper is determined as and is higher than 0.07ml/g.
[40] measure by mercury porosity meter and the porosity that presents in Fig. 1 and 2 is derived from measurement to reference paper.Curve comprises the pore-size distribution of measuring from entire paper.Fig. 2 clearly show that two peaks.First peak, about 0.1 μ m, corresponding to the porosity of coating layer, and second peak, about 1 μ m is corresponding to the porosity of body paper.Calculate the porosity of coating layer from the unsmooth measurement data of Fig. 1.The porosity of coating layer is in the drawings between 0.02-0.25 μ m.Body paper is not obvious between 0.02-0.25 μ m to the influence of porosity.The porosity measurement of coating layer is the cumulative porosity between 0.02-0.25 μ m.
Embodiment 2
[41] in this embodiment, formed according to single coating LWC-type paper of the present invention, it can be used as printing paper, and grammes per square metre is about 65gsm.Body paper contains timber.The coating mixture that is used for according to printing paper of the present invention is such mixture, and it comprises that 100 parts of sheet Kaolin pigments, 16 parts of SB latex are as binding agent and 3.3 parts of additives, for example rheology modifier and dyestuff.The particle diameter of pigment distributes and is shown in Table 1, as measured by Sedigraph 5100 devices.
[42] the reference paper of Shi Yonging is the LWC paper that contains timber with single coating of 65gsm grammes per square metre.Coating layer is the typical mixture of kaolin and carbonate.
[43] use the SDTA dispense tip, paper is carried out single coating by the scraper coating.Coating weight is 11g/m 2/ face.After coating, paper is carried out supercalendering, and select rolling condition to obtain 65% gloss level.
Table 1
Particle diameter, μ m Cumulative distribution %
Less than 10 ??100
Less than 5 ??99.6
Less than 2 ??86.7
Less than 1 ??71.3
Less than 0.5 ??53.8
[44] porosity of the coating layer of mensuration paper in printing paper according to the present invention is 0.077ml/g for 0.053ml/g and in reference paper, and is measured as mercury porosity meter.
[45] use Albert Frakenthal A 101 S printing machines,, print described paper by the HSWO printing.The HSWO print color of commerce is used for printing.After drying, the temperature that withdraws from of paper roll (web) is 130 ℃.
[46] after printing, when relatively according to printing paper of the present invention and reference paper, during vision-based detection, observing in printing paper according to the present invention has had sizable improvement aspect the ripple.After printing and drying, for example adopt the AFT method, by measuring the AFT value, can measure ripple.
[47] manufacturing of paper, coating, press polish and printing are carried out according to known mode own, do not carry out any more detailed description in the present context.
[48] in all tests, based on the ripple of paper and the flatness and the definition of printing, identity basis paper of the present invention is good printing paper.
[49] in test, observe that ripple is low in the HSWO printing, this is because the compact surfaces structure of paper and the low moisture gradient between printing and non-print surface.
[50] in a word, can reach a conclusion, the method according to this invention provides superior in quality printing paper easily.
[51] paper according to the present invention can be applicable in the different embodiments with method, so that make maximum different types of printing paper products.
[52] the present invention is not limited only to the above-mentioned embodiment that mentions; On the contrary, in the invention thought range that claim limits, many variations are possible.

Claims (13)

1. paper that forms and can be used as printing paper by the fiber base source material, it is characterized in that, by being arranged, enough density from the teeth outwards surface treatment is carried out on the surface of paper, so that mixture is arranged at least on the one side on described surface of described paper, to form superficial layer, pigment that described mixture packet content is the 75-95% of dry weight by weight and amount are the binding agent of the 5-25% of dry weight by weight, and the porosity of the described superficial layer of described paper is lower than 0.07ml/g, measures as the mercury porosity meter method.
2. paper according to claim 1 is characterized in that the described porosity of the described superficial layer of described paper is lower than 0.06ml/g, measures as the mercury porosity meter method.
3. paper according to claim 1 and 2 is characterized in that described pigment is selected from: kaolin, talcum, carbonate, gypsum and composition thereof.
4. according to each described paper in the claim 1 to 3, it is characterized in that using flake pigment as described pigment to small part.
5. according to each described paper in the claim 1 to 4, it is characterized in that described binding agent is selected from: starch, protein, latex, carboxymethyl cellulose, polyvinyl alcohol, their mixture and analog.
6. according to each described paper in the claim 1 to 5, it is characterized in that described mixture packet content is the pigment of the 82-92% of dry weight by weight.
7. according to each described paper in the claim 1 to 6, it is characterized in that described mixture packet content is the binding agent of the 8-17% of dry weight by weight.
8. according to each described paper in the claim 1 to 7, it is characterized in that described paper is by press polish.
9. according to each described paper in the claim 1 to 8, it is characterized in that described paper can be used as the printing paper in the HSWO printing.
10. make the method for paper, the paper that wherein can be used as printing paper is formed by the fiber base source material, be characterised in that described paper is carried out surface treatment, so that its mixed thing is coated on the one side at least, with on the surface that enough density is arranged in the following manner described paper and form superficial layer, pigment that wherein said mixture packet content is the 75-95% of dry weight by weight and amount are the binding agent of the 5-25% of dry weight by weight, described mode is: make the porosity of described superficial layer be lower than 0.07ml/g, measure as the mercury porosity meter method.
11. method according to claim 10 is characterized in that enough density is arranged on the described superficial layer of described paper in the following manner: make the described porosity of described superficial layer be lower than 0.06ml/g, measure as the mercury porosity meter method.
12., it is characterized in that the ratio of pigment and binding agent is controlled according to claim 10 or 11 described methods.
13., it is characterized in that described paper is by press polish according to each described method in the claim 10 to 12.
CN200880013413A 2007-04-25 2008-04-25 Paper and method for making paper Pending CN101680187A (en)

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